Hydraulic motor for dental engines.



I 0. 1.. KBLLETT. HYDRAULIC MOTOR FOR DENTAL ENGINES.

fulcrum! FILED mm. 4, zpoa. v 959,352. Patented May 24, 1910.

O. L. KELLETT.

HYDRAULIC MOTOR FOR DENTAL ENGINES.

APPLICATION FILED 1120.4. 1000.

Patented May 24, 1910.

I SHEETS-453B! 2.

- 4 a 30 59 i: Z.

OSCAR L. KELLET'I, OF WEST PLAINS. MISSOURI.

HYDRAULIC MOTOR FOR DENTAL ENGINES.

Specification of Letters Patent.

Patented May 24,1910.

Application filed December 4, 1908. Serial No. 465,997.

To all whom it may concern:

Be it known that I, ()soan L. Knmmrr, a citizen of the United States.residing at est Plains, in the county of Howell and State of Missouri,have invented a new and useful Hydraulic Motor for Dental Engines, ofwhich the following is a specification.

My invention relates more particularly tomotors which are to be used fordriving, dental machinery, and particularly to motors which are designedto be driven by a stream of water and which carry upon their s indlesopposed butting or polishing wheels.

his is the application of my motor which I have illustrated, but it willhe understood thatthe shaft of the motor may be used for actuating otherdevices of any character to which it is applicable.

The object of my invention is to provide a motor of extremely simpleconstruction wherein there shall be no hack splashing of the water whichwill act to retard the rotation of the rotor, wherein the water shall beapplied to the blades of the rotor at. a point best fitted to secure itsmaximum energy, and wherein the blades readily free themselves.

Further objects of my invention reside in the. means wherebyescape-ofwater is prevented from tlrejbearings of the rotor shaft, andthe particular construction of the rotor shaft and its bearings wherebythe bearings may be tightened upon the shaft and properly lubricated.

The invention consists in the details of construction and arrangement ofparts set forth in the accompanying specification and specificallystated in the claims appended.

In the drawings, Figure 1 is a side elevation of my motor. the casingbeing in section; Fig. 2 is a transverse vertical section of the same onthe line i -2 of Fig. l Fig. 3 is an outside fat-o view of the side ofthe casing detached: Fig. 4 is an inside face view of the plate shown inFig. 3; l igs. 5 and (tare detail views of opposite sides of the bearingsleeve; Fig. 7 is a section of the hearing showing the bearing sleeve inposition.

In the drawing, 2 designates a base of any suitable construction.preferably having: inclined sides and preferably hollow, the base beingprovided with lugs, 3, through which pass screws d for attaching: thebase to any table. Supported upon the upper face of the hose at one endthereof is a rotor casing having the two sides 5 and 6, the end wall 7and the curved wall 8. Preferably, as shown m Fig. 2', the side wait 6and the walls 7 and S are all cast in one piece, while the side plate 5is formed separately from the remainder of the casing and is attachedthereto by screws 9 which pass through the sleeves 10 formed as part ofthe sides 8 and 7.;

The side plate 5 is formed with an outwardly projecting journal box 11?,and the side plate; 6 is formed with a like journal box 11 'for thesupport of the rotor shaft. '1 he base of the. rotor cash: r is formedwith the opening, 1:2, into which is screwed the outlet pipe 13. Theupper end of the rotor casing is provided with inlet opening 14 havingan in\varilly-extcnding nozzle 15, contracted in area near its outlet.The inlet nozzle is formed by the walls of a tubular extension 16 intowhich is screw threaded u tnhular connection 17, which, at its otherend, is threaded into a tee 18. The side opening of the tee is conneetcdto a length of pipe 1!), an elbow 20 and a length of pipe 2i, which, atits lower-end is screw threaded into a valve casing 22 having thereinany suitable controlling valve :23. This valve is shown us a rotatablevalve actuated by a valve handle :34. To the inlet end of the valvecasin 22 is conuected'the inlet water pipe. 5 lea ing from any suitablesource of supply. In the upper end of the tee 18 is inserteda plug 26having a square hub whereby it may be readily unscrewed to permit theinsertion of u c caning tool into the inlet opening and nozzle.

it will he Fll'll from Fig. 2 that the rotor casing atits lower end isformed with a laterally-exteudin;. clnnnher 27, and that; the side plate6 at its lower end is formed with an inwardly-projocting fillet L-Shuvirn an inclined face which nets to diroclthe outilowing water fromthe rotor laterally toward the chamber :27. This chamber 27 acts,- uswill he more fully described later on, to prevent the hack splashing ofthe water which would otlnnwviso-t-rnd to retard the rotor. It will beseen also from Fig. 2 that the rotor chamber formed by the casing is notexactly over the middle of the outlet pipe 13, but is over one side ofthe outlet pipe and is, therefore, out of register to a? mint sluts-Zifi, whisk intersect thq lfitlg im- .4, the main buck box thurwn und'isshown as carrying at itsands that buflln qr vim!!- SL S and 30, it.vwus, haw-ever, that other 1: might 0- applied to the spindle 128*.

The wbn l 1s pm'ndad "with a mmml hub u 81, whih is made fast to tiwshaft in w iii ads.

-anfim distant? Thu upper face at the sleeve is. p m'ided mgd from theslot 3% 58%{351 in Fig is in. mgwtct wit man-mt, and aurnuunding Hm sh;(t

are. tha glue-vex $3 shuwn in (intuit in F' E Ind E,

will in Hm: Fgt 5 the 51m .Ifi slatted at its anderstdn, t malmost itswith 1 genius nf alnta 3 5 mm inclined. The map: 'Elld 0f t ha item: isprovided with a serum of acmmxdiml slat 3*, tbs sinus being indiumdutbeiem tram 9, u in of the iounml 210x11 um yizmdad with aInngltutliml gmmgeiii' mm mg from Elm fame :f such shin plate flutm lrtlabout hglfthe 0! the puma-l hum; Th:

inmr at each of tbs side, plutca 6 1:11 slim 8-1 in the 31mm It. will1:"; mun tmm Fig. 2 that :flw'ee :13 huge: than the gn 11L, pmjwt be'ocmd the mmg, t-hm hemg Imthe:

u pfigtmittimg the S1118! b6 mulm {of 1m burn. mid whim wi h flm 0113:?m1; of the. 51mm: 11= r inn ufueh hm: 11' mi 11 in pm w 'e tha it mp4110 which ham re steri with 'plssugui 'll upped in {1118. its. w ich inturn reglster with mm 35 m th, flame 88 time; rmidin Imthe .[uhri-a miun of kit I through tbs sluwm Twn ma med ant 42 1mm tivmugh lg-ux' anuppositu st :1 qmnf uni 4mwith flu: Mm 8-3 m either fi'ialu 6%? t flutemthnt wlmn tamed the shave. [my bu tighmmdu nuyha flmfl E8 in n 1mm flu:skew hem; hnld fixed nth minfinrn tn the slmfi by (1m gmmnt 0i flame setscrews and. by the fig t fit flf tbn slum-o within the human H. m- 11.vuse sleeves farm hashing; hid: amt tn luilriet'he tluguhuft m lmvinliu uWaring auirfwm HI'I'I wmch ulm pmwml. wumr fmm paid-1g flbt gmuglg {:12Emma. TIM; .i swig; t menu is I men -r I rga, dam; an. Wmturw fim mm011M311!- tn uw thu bushhgg; @1141 tha wis'imr m 1x111 be mllected m thochannels fmmnfi by Um 51m 33 and will flaw dnwnward the longitudinalgmavgfi hm! nut thmugh the duwnswnrdly cmtemtmg slut B8- ami thus utterintuthe mint in lo mt wtth the uulflnw nf w r It mt! he man that thebushing! m." slamm- B3 and the parts umumtazt timmwith minim.

v p, imzilng In: 0:! :aluit, provide! a.

wifiulu. in mlilwmtrlm to: im-van; my 1 I at bull: ends of the hub arethe wafilwrs H2. Butmumling Lhlk shaft outwit: of the wuafllwingingnftlwshnfi, mad apt nut only In lubncate Hm pm BT13 but g'mnnt may mttflowof wntar- At the 3am! fimBg the may be eanilg g-ithdmwn 64$)? re- Whvm IThe water wheat or :mttrr $8 I in 5m manner but is mfembiy cut annngpage 1151011 the but: 1 I. with! fm'm'in the web mi the wine]. as uso Is: tn I ,b'qfl flu: 253

females with tbs ting 1% having. the 'lstm nthur lands areja; in am12:98 mtiz a ring 16. It m1! be 561311 imm 2 113115! the water wheel inm5 flame is hrflimr, hit the, lfllittiga haw: nu hnt'tmn n-mhs'butt-2mg; an m attunminis, that m: packets in pun 111:? niircnmfmtmuthat fhnputwg if! mg mm-2s with IR Hit-lie aw- .52am: it! a 1hr: wwtmrmu! that t'llm m tlmmfnffe, fin hard; :ntim 0f iliu witelr m l'ir'lrntfiil-r AF; will bu est-ml Fig; fi t an act a! mmh u'n angiu tntlm mat: n! the when! that thin will it in fit! mm V I :1 15 in n plimealumni-5111 at right-an; and at Hm human 1 1' ind "L1 in ugh 1 t at flublades am MI Mi, 0mm llh' Jain the bf t w Tm an um thirtimih Mattie t1?at an angle of stimuli 113* In it mqittl 111:1 timwn thmrgh Hm centertzf the mum of! Him Mamet, and 11m at tin: bflglllgi n .Th! male Iiidmfi Mt 0mm mlmllgufi flu: main r unit-111E3- mum flit: nag'iii Hf filmtutor, in: is m m; mm mminl'hgmnf -mb an :ngh: nfnhmit I'ifl with uImam! 1111a 1 mm thrmugh tim mrix lit-hm 13m: mmhinnfim H u will m mumsnmiur' and that the whole force of the water there fore is directedagainst the blades at the point where the water leaves the nozzle, andthat, as the blades pass downward, they lear themselves, while, at thesame time, the

' water is applied at the extreme edge of the with any the rotor beinghollow, taken in conjunction with the peculiar settin of the blades,

'- is that when the blades in t ieir course 21'- i the rotor.

riveabout the outlet pipe, 13, they are substantially vertical and thatthus the back pressure of water in the pipe 13 or back splash thereofwill not act upon the surface of the blades to retard the movement of Itwill be seen that a maximum of surface is provided at the nozzle and a.minimum of surface at the outlet. It will also be seen thntthe outlet 13is arran ed directly beneath the inlet 14 and that 1: us

the water passes directly downward and not in an circuitous path.

As fore stated, the pipe 13 is greater in diameter than the thickness ofthe rotor casing and the water pissing downward from the nozzle 15 willdirected laterally by the fillet 28 into the pipe 13 and into thechamber 27. Any backward pressure of the water in the pipe 13 or anybubblin" or splashing of tlns water in its esca will not affect thewheel, as the water will directed into the lateral chamber, 27, and theressure will be received against the walls t oreof and not a ainst thewheel itself.

' As noted :ihove, the wheel, with its. blades and the two rings, 46 and44, is formed in one piece. The ring 46, which is adjacent to the innerface of the plate 5, maybe surfaced in any suitable manner, as in alathe,

in order to provide :1 smooth face to the I wheel at the side of itwhich is nearestto contact with the casing. The remainder of the wheelrequires no surfacing, but may be used as it is cost. This is animportant oint in the economical manufacture of my eviee.

The advantages of my imicn"..on-are obvious from what has been beforedescribed. The wheel is intended to rotu'e at a very high speed. from1800 to 2000 revolutions per minute, and hence must be so constructcdthat it will run absolutely true and so that the wheel will clear itselfof water: that there shall be no buck pressure of water, but that thewater will be disclmr ed innuediatcly that it leaves the wheel. It isalso necessary in wheels running at this speed for small motors thatthey shall be as skeletonio as ssiblu, with the least possible contactWll the water. These objectsure achieved by my construction. The deviceis simple and compact, may no easily connected to Snlt'iblt inlet; anddischarge pipes, may be run at high speed without heating, and with adegree o steadiness not heretofore attainable.

From the foregoing, it is thought that the construction, operation andmany advantages of'the herein described invention will be 1ppanent tothose skilled in the art without. urther description, and it will beunderstood that various changes in the size, shape, proportions andminor details of construction may be resorted to without departing fromthe s irit or sacrificing any of the advantages 0 this invention.

Having thus described my invention, what. I claim as new and desire tosecure by Letters-Patent, is:

1. In a motor, the'combination of :1 casing, a wheel rotatably mountedtherein and including a pair of rings, and blades secured to the ringswith the spaces between adjacent blades open at the top and bottom andalso at one side, a nozzle dis used with its axis approximatelytangentia l to the wheel to discharge fluid against the blades, and anoutlet conduit disposed under the wheel and nozzle.

2. In a motor, the combination of :1 casing, a wheel mounted thereinincluding a. plurality of peripheral blades, and 11 ring r isposedinwardly from the blades and connected with the inner corners thereofand also including a second ring secured to all the blades at onesidmllle fluid impiu ing faces of the said blades being arranger at anobtuse angle to the periphery of the first ring, a nozzle in the casin aranged to discharge fluid aguinst the blhdes, and an outletconduitarrangcd under the nozzle and wheel.

3. In a motor, a casing having 0 posed m- Ict and outlet openings 11wheel ocnted in said casing below the in ct opening, the axis of theoutlet opcnin of the casing being in line with one face ofihe wheel saidopening being laterally larger than the width of the wheel extendingbeneath the some but hovino' its axis oflsct to the vertical plane ofthe \v eel.

4. In a motor. the combination of u casing having inlet andoutlvtopcniugs and formed with u tint wall disposed in u planeapproximately coincident with the diameter of the outlet opening. anoffset chuml'wr in the said side. wall mmmunicnting: with the outletopening. with a wheel rotntubly mounted in the casing. said wheelconsisting of u spider fornu-d with a wriplu-rul ring-blades havin theirinner portions secured to the ring and disposed with their fluid in:winging faces at an obtuse angle to the pcrip cry of the ring, and asecond rin dis osed in proximity to the said fiat wal of t e casin andsecured to the edges of the blades'on y at one side thereof.

5 5. In a motor, the cmubination of a casing,

a nozzle mounted therein, a dischargeconduit disposed opposite thenozzle, and a wheel arran ed in the casin in coiiperative relation wit 1the nozzle an outlet conduit,

said wheel oomprisin a body, a plurality of outwardl extendingiladespro'ecting from the per? ery of the body and aving their inner e gesintegrally connected therewith, a rin separate from the body and locatedout o the plane thereof and integrally connected with the hides at the sde edge: thereof.

6. In a motor casing having two iurallel sides, a vertical end wall anda circu or wall opposed to the vertical wall, the lower 01'- tion of thecircular wall extending dlaganally downward to the bottom of the casing,said casing having an inlet opening adjacent to the up or end of thestraight end 5 wall, and an out et opening adjacent to the lower end ofthe straight end wall, a bladed rotor mounted within the casing havingits cirolmiference in line with the inlet opening, said rotor comprisingan open frame with blades projecting outwardly in the dimotion ofmovement at an an le to the radii of said rotor, said blades havingtheir fluid impinging faces disposed at an obtuse ange to the peripheryof the rotor, and the spaces between a jacent blades being open betweenthe bottom edges of the latter and also at the side and outer edges.

7. In a motora a casing having an upper,

inlet opening an a lower outlet opening and 40 a. rotor mounted in saidcasing having an open frame and having blades on its circumference, aring carrying the blades, and a. second rin of larger diameter than thefirst and carried by and connected with the blades at one side thereof,the bottoms of said blades bein disconnected from each other, saidblades ing inclined in the direction of movement of the rotor, each atan angle to a radial line through the shaft of the rotor and throu h thebase of said blade. the axis of the out et optening being nearer to theplane of the sha of the rotor than the axis of the inlet opening and theoutlet pening being of larger diameter than the inlet opening.

8. In a. motor, a casing having an inlet. nozzle at its upper end and arotor mounted. in said casing with its blades adapted to project.beneath said nozzle, the lower end of said casing beneath the rotorbeing laterally extended only at one side and having an outlet openingtherethrough, said opening being larger than the width of the rotoreasing uh extending partly beneath the same to partly registertherewith, and I. deflecting means arranged within the casing on thewall opposite from the laterally-extended portion thereof.

9. In a motor, a casing having an inlet nozzle uxiwndi lg into thecasing at one Sltl-J 79 thereof, a rotor centrally mounted in saidcasingn'ovided with circumferential blades adapte to he carried beneaththe nozzle, the lower end of said casing hein" formed with alaterully'oxtcnded chamber m'ing an outlet opening therethrougll locatedbeneath the casing and beneath the lateral extension thereof, the sideof said casing opposed to the chamber or lateral extension limingprovided with a fillet adapted to direct the metive fluid into saidchamber as it leaves the rotor.

10. lo a water motor, a easing having; op posed JOUl'llill boxes, 11wheel having aspindie carried in said journal boxes, :1 bushing locatedwithin each of the journal boxes and surroundiru the spindle, saidbushings being each provided with a. series of transverse waterconducting slots and each of the journals having a water conductingroore formed therein intersected by the sots in said bushings andleading to the interior of the casing.

11. In a water motona casing having op posed journal boxes, a rotormounted Within the casing having a spindle carried in said journalboxes, and bushings carried by the journal boxes and surrounding thesnndie, each of said bushings being provide with a series of watercondor-ting transverse slots, 10o aliuiug with water conducting groovesin the journal boxes and curl] of said bushings being provided withslots aiming with oiling passages in the journal boxes.

1:3. in a motor, a raising having opposed 5 journal boxes ear-h providedwith an oil cup and passages haulin" from the oil cup to the center ofthe journalboxes, a spindle mounted in the journal boxes, av rotor onthe spindle within the casing, and bushings mounted within the journalboxes andsurrounding the spindle on either side of the rotor, each ofsaid bushings being split, provided on their up er sides with a seriesof slots alining witli the oil openings in the journal boxes and attheir inner ends with a series of water conducting slots, eachregistering with intersecting water conducting slots formed in the innerface of the journal hearing and loading In the interior of the casing.

13. In er motor, a casing having one sidP wall and the circumferencethereof made-in one pu-ve and [no other sulo wall dotm'hablo themf'rom,u lalvralIya-xlomliug chamber forun-d at the bottom of the first-namedside wall. on iuu'aidly-extending fillet formed at the bottom of thesecond side wall in line with tho latorally-extendin chamber, an outletpipe connected to the bottom of said casing partially beneath thechamber and partially beneath the casing, an inlet nozzle extending intothe casin at the upper end thereof in alinemexlt wit. the outlet pipe, arotor mounted within the casing to one side of the inlet. nozzle, havingblades extending outward in the direction cf movement at an an let; theradii of said rotor the emls of sai blades being adapted to registerwith the opening of'the nozzle, journal boxes formed on the sides ofsaid casing, and means within the journalboxes for preventing theoutflow of water from the casing therethrou h.

14. In a. motor, the combination 0 2. casing ha ing a. noznle, with abladed rotor in the casmg comprising a spider, a. mug carried b the urange with heir eorrespondin side eo%es flush with the spider and ringan integru 1y connected with the blades, and a. ring :mmected with theside edges ufllie blades". opposite from the first-mentioned side edgesried by the blades.

In testimony, that I claim the foregoing as my own, I have heretoafiixed my signature in the presence of two witnesses OSCAR L. KELLETT.Witnesses F. M. Wm, M. T. HABLIN.

riphery thereof, blades ar the lutler 11!; the corners of.

and wholly can

